• ChaoticNeutralCzech@feddit.org
    link
    fedilink
    English
    arrow-up
    1
    ·
    21 小时前

    Pairs of wires like for trolleybuses are required. Grids are for free roaming in an area, which almost nobody needs, and only work when the traction surface is conductive, at which point best just build metal-on-metal rails.